Table 1.

Principal components analysis.

	PC1	PC2	PC3	PC4	PC5	PC6	PC7	PC8
Albumin	0.23	0.08	−0.05	−0.12	−0.06	0.11	−0.17	−0.02
Oxygen saturation	0.24	−0.07	−0.05	−0.1	0	0.08	−0.06	−0.08
PaO2/FiO2	0.22	−0.03	−0.03	−0.04	−0.05	0.02	0.05	−0.04
Estimated glomerular filtration rate	0.15	0.09	−0.13	0.2	0.08	−0.15	0.31	−0.15
Lymphocytes	0.11	0.1	−0.01	0.05	0.02	0.03	−0.13	−0.25
Thoracic subcutaneous a. t.	0.05	0.21	0.27	0.18	−0.02	−0.05	0.05	−0.1
TyG-BMI index	−0.08	0.39	0.2	0.05	−0.05	0.12	−0.03	−0.22
Body mass index	−0.04	0.4	0.17	0.02	−0.12	−0.01	0	−0.21
Weight	−0.03	0.41	0.07	−0.05	−0.21	−0.05	−0.05	−0.1
Hepatic steatosis	−0.01	0.23	−0.08	0.09	−0.07	0.13	0.07	0.06
Heart rate	−0.06	0.15	−0.2	0.11	0.11	0.03	−0.18	0.19
Axillary temperature	0.01	0.11	−0.09	0	0	−0.04	−0.14	0.15
Prothrombin	0	−0.01	−0.14	−0.08	−0.12	−0.15	−0.22	0.03
Vitamin D	0.03	0.02	−0.14	−0.08	−0.07	−0.03	−0.13	−0.02
Height	0.04	0.11	−0.07	−0.03	−0.19	−0.1	−0.05	0.18
Hemoglobin	0.05	0.1	−0.02	−0.11	−0.09	−0.02	−0.13	−0.08
Diastolic pressure	0.04	0.23	−0.09	−0.24	0.27	−0.03	−0.03	0.09
Mean arterial pressure	0.03	0.25	−0.03	−0.27	0.39	−0.07	0.01	0.15
Systolic pressure	0	0.2	0.07	−0.22	0.44	−0.09	0.05	0.19
Pulse pressure	−0.03	0.04	0.14	−0.07	0.29	−0.09	0.09	0.15
Cytopenia	0.02	−0.06	0.13	−0.04	−0.08	0.13	0.03	0.3
Serum creatinine	−0.09	−0.04	0.22	−0.01	−0.04	0.18	−0.33	0.17
Consolidation	−0.09	0.07	−0.07	0.34	−0.03	−0.22	0.05	0.22
Grounded glass opacity	−0.08	0.09	−0.1	0.34	−0.04	−0.22	0.05	0.22
Ventilatory support time	−0.11	0.08	−0.07	0.1	−0.06	0.05	−0.15	0.11
Hospitalization time	−0.07	0.02	−0.11	0.07	−0.05	0.08	−0.15	0.14
Platelets	−0.11	−0.03	−0.17	0.12	0.19	−0.06	0.1	−0.21
Symptomatic time	−0.06	0.01	−0.11	−0.1	0.01	−0.1	0.14	−0.14
Indirect bilirubin	−0.09	−0.04	−0.09	−0.28	−0.1	−0.15	0.02	−0.17
Direct bilirubin	−0.15	−0.01	−0.11	−0.25	−0.15	−0.11	0.05	−0.12
Epicardial fat	−0.12	0.06	−0.1	−0.16	−0.14	−0.05	0	0.01
Creatinine kinase	−0.06	0.08	−0.03	−0.11	−0.17	0.16	−0.04	0.17
Alanine transaminase	−0.07	0.12	−0.19	−0.1	−0.1	0.22	0.35	0.05
Aspartate aminotransferase	−0.13	0.04	−0.12	−0.12	−0.17	0.23	0.34	0.13
Ferritin	−0.18	0.02	−0.18	−0.2	−0.1	0.12	0.09	0.02
Lactic dehydrogenase	−0.24	0.03	−0.09	−0.02	−0.09	0.12	0.11	0.04
Respiratory rate	−0.18	0.04	−0.04	0.11	0.07	−0.03	0	0.05
Pulmonary involvement	−0.21	0.03	−0.06	0.1	−0.03	−0.14	0.02	−0.03
Fibrinogen	−0.2	0	−0.2	0.04	0.13	−0.1	0	−0.12
C-reactive protein	−0.22	−0.02	−0.09	−0.01	0.07	−0.07	−0.07	−0.04
Neutrophils/lymphocytes	−0.23	−0.09	−0.12	−0.04	0.02	−0.06	−0.11	0.08
Leukocytes	−0.21	−0.01	−0.15	0.04	0.09	−0.05	−0.2	−0.16
Total neutrophils	−0.15	−0.01	−0.15	0.03	0.07	−0.03	−0.29	−0.18
Triglycerides	−0.13	0.04	0	0.13	0.13	0.38	0.04	−0.06
TyG index	−0.18	0.04	0.06	0.08	0.16	0.36	−0.02	−0.08
Glucose	−0.17	0.02	0.09	−0.02	0.11	0.14	−0.08	−0.03
Blood urea nitrogen	−0.21	−0.12	0.16	−0.08	0.02	0.14	−0.18	−0.06
BUN to creatinine ratio	−0.14	−0.12	0.15	0.02	0.11	−0.01	0.06	−0.27
D-dimer	−0.18	−0.07	0.08	0.02	0	0.02	0.18	0.01
Ultrasensitive troponin	−0.15	−0.08	0.25	0.1	0.04	0.01	0.08	0.11
Age	−0.12	−0.23	0.26	−0.16	0.04	−0.1	0.08	−0.02
Right pulmonary artery	−0.16	0.03	0.21	−0.19	−0.12	−0.23	0.04	0.05
Left pulmonary artery	−0.17	0.01	0.21	−0.12	−0.15	−0.2	0.04	0.05
Pulmonary artery trunk	−0.12	0.11	0.23	0.03	−0.09	−0.21	−0.04	0.06

Physiological variable contributions to each selected principal component are tabulated according to optimal leaf order.